import { WOOT_PREFIX } from './constants'

export const isEmptyObject = obj =>
  Object.keys(obj).length === 0 && obj.constructor === Object

export const sendMessage = msg => {
  window.parent.postMessage(
    `chatwoot-widget:${JSON.stringify({ ...msg })}`,
    '*'
  )
}

export const IFrameHelper = {
  isIFrame: () => window.self !== window.top,
  sendMessage,
  isAValidEvent: e => {
    const isDataAString = typeof e.data === 'string'
    return isDataAString && e.data.indexOf(WOOT_PREFIX) === 0
  },
  getMessage: e => JSON.parse(e.data.replace(WOOT_PREFIX, ''))
}
export const RNHelper = {
  isRNWebView: () => window.ReactNativeWebView,
  sendMessage: msg => {
    window.ReactNativeWebView.postMessage(
      `chatwoot-widget:${JSON.stringify({ ...msg })}`
    )
  }
}

export const groupBy = (array, predicate) => {
  return array.reduce((acc, value) => {
    (acc[predicate(value)] || (acc[predicate(value)] = [])).push(value) // x ||= y 等同于 x || (x = y)
    return acc
  }, {})
}
